AT_abc384_a [ABC384A] aaaadaa

You are given a string $ S $ of length $ N $ consisting of lowercase English letters, along with lowercase English letters $ c_1 $ and $ c_2 $ . Find the string obtained by replacing every character of $ S $ that is **not** $ c_1 $ with $ c_2 $ .

The input is given in the following format from Standard Input: > $ N $ $ c_1 $ $ c_2 $ $ S $

Print the answer.

### Sample Explanation 1 Replacing `a` and `c` (which are not `b`) with `g` in $ S= $ `abc` results in `gbg`, so print `gbg`. ### Sample Explanation 2 It is possible that the resulting string after replacement is the same as the original string. ### Constraints - $ 1\le N\le 100 $ - $ N $ is an integer. - $ c_1 $ and $ c_2 $ are lowercase English letters. - $ S $ is a string of length $ N $ consisting of lowercase English letters.